| Sol－Gel法制备的CoMnNiMgO热敏元件老化特性的研究 |
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| 引用本文： | 李芳孝,宋世庚,韩英,梅向阳,陶明德.Sol－Gel法制备的CoMnNiMgO热敏元件老化特性的研究[J].电子元件与材料,1995(2). |
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| 作者姓名： | 李芳孝 宋世庚 韩英 梅向阳 陶明德 |
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| 作者单位： | 乌鲁木齐新疆医学院，乌鲁木齐新疆物理所 |
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| 摘 要： | 假设老化是从亚稳态到稳态的变化，利用反应动力学理论对Ｓｏｌ－Ｇｅｌ法制备的ＣｏＭｎＮｉＭｇＯ热敏元件的老化特性进行了研究，推导出老化公式△Ｒ／Ｒｏ＝Σｒｉ［１－ｅｘｐ（－ｔ／τｉ）］其中：τｉ＝τｏｉｅｘｐ（Ｅｉ／ｋＴ））。结果表明理论与实验能很好地一致，对于本文所研究的热敏元件，符合公式ＡＲ／Ｒｏ＝ｒ１［１－ｅｘｐ（－ｔ／τ１）］＋ｒ２［１－ｅｘｐ（－ｔ／τ２）］，该式中：，ｒ１＝１１．７６７×１０－３；ｒ２＝２０．６７３５×１０－３；τ１＝６．４５７８×１０－３ｅｘｐ（６１９０．８９／Ｔ）；τ２＝１．０４６１×１０－６ｅｘｐ（８ｌｌ６．２４／Ｔ）。
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| 关 键 词： | 老化，反应动力学，老化时间常数，老化常数，老化活化能 |
Study on the Ageing Mechanism of CoMnNiMgO Thermistors Prepared by Sol-Gel Processing |
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| Li Fangxiao, Song Shigen, Han Ying, Mei Xiangyang, Tao Mingde.Study on the Ageing Mechanism of CoMnNiMgO Thermistors Prepared by Sol-Gel Processing[J].Electronic Components & Materials,1995(2). |
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| Authors: | Li Fangxiao Song Shigen Han Ying Mei Xiangyang Tao Mingde |
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| Affiliation: | Li Fangxiao; Song Shigen; Han Ying; Mei Xiangyang; Tao Mingde |
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| Abstract: | Assuming the ageing's reason is the change from substable state to stable one and using the reaction dynamics, we studied the ageing mechanism of CoMnNiMgo thermistor prepared by Sol-Get processing and the ageing formula is obtained in this paper: △R/RO =ri1-exp(-l/τi)], here: τ1= τoiexp(Ei/kT). The results indicated that the theory agrees with the experiment datum very well. Ageing character of the thermistor used in this paper can be described as follow :△R/Ro=τ11-exp(-l/τ1)]+τ2 1 -exp-l/τ2)] here: r1 = 11. 767× 10-3, τ2 =20. 6735× 10-3, τ1=6.4578× 10-6exp (6190. 89/T), τ2= l. 0461× 10-6exp(8116. 24/T) . |
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| Keywords: | ageing the reaction dynamics ageing time constant ageing constant ageing activation energy |
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